diff --git a/src/libvirt.c b/src/libvirt.c
index 3ec5724667..ca383ba528 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -4074,6 +4074,7 @@ virConnectGetCapabilities (virConnectPtr conn)
         ret = conn->driver->getCapabilities (conn);
         if (!ret)
             goto error;
+        DEBUG("conn=%p ret=%s", conn, ret);
         return ret;
     }